Stove for domestic purposes



Dec. 7, 1937. A A

STOVE FOR DOMESTIC PURPOSES Filed Jan. 10, 1935 Qnmvntm Isak Rasanen SNew My Patented Dec. 7, 1937 UNITED STATES PATENT OFFICE ApplicationJanuary 10, 1935, Serial No. 1,219 in Finland February 28, 1933 2Claims.

This invention relates to a small and light stove which is inexpensiveto manufacture and combines the advantages of a stationary stove withthose of a transportable stove. The present invention has for its objectto provide a stove whose heating efiiciency is high and one which willradiate the heat rapidly. It is chiefly intended as a heating stove,burning wood as fuel but it also may be used with coal, coke. sawdust orother fuels.

In the drawing:

Figure 1 is a vertical sectional View of a stove embodying my inventionand taken on the line l-l of Figure 2.

Fig. 2 is a horizontal cross section on the line 2-2 of Fig. 1.

Fig. 3 is a vertical section on the line 3--3 of Fig. 1.

In the drawing, those parts shown cross hatched are either made ofbrickwork or cast of refractory material. In this brickwork or castrefractory material portion is located the combustion chamber l andbelow the latter is located the ash box 8. The combustion chamber iscomparatively high so that it may contain a large quantity of fuel. Atboth sides of the combustion chamber there is a flue 3 which conductsthe hot gases from the chamber i upwardly and rearwardly to a verticalchamber 4, the gases from fiues 3 flowing downwardly through chamber 4to the bottom portion of the stove and escaping through a flue 5 whichis located as shown at about the level of the ash pit. The chamber 4 onits lower portion is formed by the sheet metal cover l although theupper portion thereof may be made of refractory material and providedwith a'lining of mineral material Ii. The lower portion, however, iscomposed of the sheet metal In only. When the combustion gases passslowly downward along the chamber 4 the metal walls radiate the heatquickly to the room which is to be heated, while that portion of thestove which is made of brickwork or cast refractory material will keepthe absorbed heat for some time even after the fire has beenextinguished.

Air for combustion passes into the stove through openings 6 and I,certain of the openings discharging below the grate S and othersdischarging above the grate. The ash box 8 is located in the ash pit l2below the grate.

The fuel is introduced through the fire door 2, which door is suitablyair-cooled.

The stove of the present invention is of a very simple construction,inexpensive to manufacture but having nevertheless, a high efiiciency.As no special fuel container is used to be filled from the top, theconstruction shown and described 10 is thus simplified and the cost ofmanufacture kept at a low figure.

What I claim is:

1. A stove made of brickwork and sheet metal, said stove having acombustion chamber and a fire door for the introduction of the fuel intothe combustion chamber, a grate and an ash pit at the bottom of thecombustion chamber, a flue at each side of the combustion chamber forconveying the hot gases upwardly and then rearwardly, a chamber at therear of the stove into the top of which the hot gas-es are delivered bysaid fiues to flow downwardly through said rear chamber, a fine at thebottom of the stove for conveying the gases from said rear chamber, thelower portion of said rear chamber having a sheet metal wall only forthe rapid dissipation of heat to the room to be heated, substantially asdescribed.

2. A stove, made of brickwork or cast refractory material and sheetmetal, said stove having a combustion chamber and a fire door for theintroduction of the fuel into the combustion chamber, a grate and an ashpit at the bottom of the combustion chamber, a flue at each side of thecombustion chamber for conveying the hot gases upwardly and thenrearwardly, a chamber at the rear of the stove into the top of which thehot gases are delivered by said fines to flow downwardly through saidrear chamber, a flue at the bottom of the stove for conveying the gasesfrom said rear chamber, the lower portion of said rear chamber having asheet metal wall only for the rapid dissipation of heat to the room tobe heated, the upper portion of said rear chamber being provided with alining of mineral material.

ISAK RASANEN.

